LM of adult intestinal blood flukes

LM of adult intestinal blood flukes

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This image is part of the feature Spirals In Nature

Credit: SINCLAIR STAMMERS/SCIENCE PHOTO LIBRARY

Caption: Light micrograph of adult intestinal blood flukes, Schistosoma mansoni, cause of schistosomiasis, commonly known as bilharzia. The adults (male thick & bluish, female white & threadlike) norm- ally live in pairs in blood vessels of the small intestine, causing dysentery & diarrhoea. Their spiked eggs cause anaemia, inflammation & tissue scarring. The larvae develop in freshwater snails (intermediate host) & are released into the water. Humans (final host) are infected while bathing or working in contaminated water. The dark brown coloration, particularly noticable in the female, is half digested blood from a previous meal. Magnification: x5 at 35mm size. Microcosmos, P.50, fig. 3.14.

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Keywords: animal, blood, flatworm, fluke, invertebrate, invertebrates, light micrograph, nature, platyhelminthes, schistosoma mansoni, spiral, wildlife, zoology

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